diff options
| author | Keith Packard <keithp@keithp.com> | 2012-08-18 21:25:34 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2012-08-18 21:25:34 -0700 |
| commit | 8457ca81adc9d62a7ffe56a7c0c36f2fcadaa682 (patch) | |
| tree | 8592ba6e2ec5c745d09ecb94b0ab44fbbc16138e | |
| parent | f46d94ca5c969c88dd307d1b684d6fafa2157020 (diff) | |
altos/cc1111: Document SPI bus pin options
Just a comment in the source code about which pins each option selects.
Signed-off-by: Keith Packard <keithp@keithp.com>
| -rw-r--r-- | src/cc1111/ao_spi.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/src/cc1111/ao_spi.c b/src/cc1111/ao_spi.c index 88cff9dd..52087fb4 100644 --- a/src/cc1111/ao_spi.c +++ b/src/cc1111/ao_spi.c @@ -118,13 +118,34 @@ ao_spi_recv_bus(void __xdata *block, uint16_t len) __reentrant } /* - * Initialize USART0 for SPI using config alt 2 + * USART0 SPI config alt 2 (using this one) * * MO P1_5 * MI P1_4 * CLK P1_3 * CSS P1_2 * + * USART0 SPI config alt 1 + * + * MO P0_3 + * MI P0_2 + * CLK P0_5 + * SS P0_4 + * + * USART1 SPI config alt 2 + * + * MO P1_6 + * MI P1_7 + * CLK P1_5 + * SS P1_4 + * + * USART1 SPI config alt 1 + * + * MO P0_4 + * MI P0_5 + * CLK P0_3 + * SS P0_2 + * * Chip select is the responsibility of the caller in master mode */ |